Commit 33a201fa authored by Ingo Molnar's avatar Ingo Molnar

x86, apic: streamline the ->multi_timer_check() quirk

only NUMAQ uses this quirk: to prevent the timer IRQ from being added
on secondary nodes.

All other genapic templates can have a NULL ->multi_timer_check()
callback.

Also, extend the generic code to treat a NULL pointer accordingly.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 72ce0165
......@@ -62,11 +62,6 @@ static inline void bigsmp_setup_apic_routing(void)
"Physflat", nr_ioapics);
}
static inline int multi_timer_check(int apic, int irq)
{
return (0);
}
static inline int apicid_to_node(int logical_apicid)
{
return apicid_2_node[hard_smp_processor_id()];
......
......@@ -82,11 +82,6 @@ static inline void es7000_setup_apic_routing(void)
nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
}
static inline int multi_timer_check(int apic, int irq)
{
return 0;
}
static inline int apicid_to_node(int logical_apicid)
{
return 0;
......
......@@ -104,11 +104,6 @@ static inline physid_mask_t default_ioapic_phys_id_map(physid_mask_t phys_map)
return phys_map;
}
static inline int multi_timer_check(int apic, int irq)
{
return 0;
}
/* Mapping from cpu number to logical apicid */
static inline int cpu_to_logical_apicid(int cpu)
{
......
......@@ -3,7 +3,6 @@
#include <asm/genapic.h>
#define multi_timer_check (apic->multi_timer_check)
#define apicid_to_node (apic->apicid_to_node)
#define cpu_to_logical_apicid (apic->cpu_to_logical_apicid)
#define cpu_present_to_apicid (apic->cpu_present_to_apicid)
......
......@@ -43,7 +43,7 @@ static inline void numaq_setup_apic_routing(void)
* Skip adding the timer int on secondary nodes, which causes
* a small but painful rift in the time-space continuum.
*/
static inline int multi_timer_check(int apic, int irq)
static inline int numaq_multi_timer_check(int apic, int irq)
{
return apic != 0 && irq == 0;
}
......
......@@ -64,11 +64,6 @@ static inline void summit_init_apic_ldr(void)
apic_write(APIC_LDR, val);
}
static inline int multi_timer_check(int apic, int irq)
{
return 0;
}
static inline int summit_apic_id_registered(void)
{
return 1;
......
......@@ -1618,10 +1618,15 @@ static void __init setup_IO_APIC_irqs(void)
}
irq = pin_2_irq(idx, apic_id, pin);
#ifdef CONFIG_X86_32
if (multi_timer_check(apic_id, irq))
/*
* Skip the timer IRQ if there's a quirk handler
* installed and if it returns 1:
*/
if (apic->multi_timer_check &&
apic->multi_timer_check(apic_id, irq))
continue;
#endif
desc = irq_to_desc_alloc_cpu(irq, cpu);
if (!desc) {
printk(KERN_INFO "can not get irq_desc for %d\n", irq);
......
......@@ -79,7 +79,7 @@ struct genapic apic_bigsmp = {
.ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
.setup_apic_routing = bigsmp_setup_apic_routing,
.multi_timer_check = multi_timer_check,
.multi_timer_check = NULL,
.apicid_to_node = apicid_to_node,
.cpu_to_logical_apicid = cpu_to_logical_apicid,
.cpu_present_to_apicid = cpu_present_to_apicid,
......
......@@ -60,7 +60,7 @@ struct genapic apic_default = {
.ioapic_phys_id_map = default_ioapic_phys_id_map,
.setup_apic_routing = default_setup_apic_routing,
.multi_timer_check = multi_timer_check,
.multi_timer_check = NULL,
.apicid_to_node = apicid_to_node,
.cpu_to_logical_apicid = cpu_to_logical_apicid,
.cpu_present_to_apicid = cpu_present_to_apicid,
......
......@@ -121,7 +121,7 @@ struct genapic apic_es7000 = {
.ioapic_phys_id_map = es7000_ioapic_phys_id_map,
.setup_apic_routing = es7000_setup_apic_routing,
.multi_timer_check = multi_timer_check,
.multi_timer_check = NULL,
.apicid_to_node = apicid_to_node,
.cpu_to_logical_apicid = cpu_to_logical_apicid,
.cpu_present_to_apicid = cpu_present_to_apicid,
......
......@@ -66,7 +66,7 @@ struct genapic apic_numaq = {
.ioapic_phys_id_map = numaq_ioapic_phys_id_map,
.setup_apic_routing = numaq_setup_apic_routing,
.multi_timer_check = multi_timer_check,
.multi_timer_check = numaq_multi_timer_check,
.apicid_to_node = apicid_to_node,
.cpu_to_logical_apicid = cpu_to_logical_apicid,
.cpu_present_to_apicid = cpu_present_to_apicid,
......
......@@ -59,7 +59,7 @@ struct genapic apic_summit = {
.ioapic_phys_id_map = summit_ioapic_phys_id_map,
.setup_apic_routing = summit_setup_apic_routing,
.multi_timer_check = multi_timer_check,
.multi_timer_check = NULL,
.apicid_to_node = apicid_to_node,
.cpu_to_logical_apicid = cpu_to_logical_apicid,
.cpu_present_to_apicid = cpu_present_to_apicid,
......
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